Riddle Me Ree – Who Am I ???

I am a word of five letters!
People eat me!
I am available in 2 colours.
If you remove my first letter i will be a form of crime.
If you remove my first 2 letters i will be name of an animal.
If you remove my first 4 letters i am a vowel.Who Am I ?

#2

With pointed fangs I sit and wait,
with piercing force I serve out fate.
Grabbing bloodless victims, proclaiming my might;
physically joining with a single bite.Who Am I?

#3

I dig out tiny caves,
and store gold and silver in them.
I also build bridges of silver and make crowns of gold.
They are the smallest you could imagine.
Sooner or later everybody needs my help, yet
many people are afraid to let me help them.Who Am I ?